Subject: Cell: add register access based on SPU device_nodes

Signed-off-by: Christian Krafft <krafft@de.ibm.com>

Index: linus-2.6/arch/powerpc/platforms/cell/cbe_regs.c
===================================================================
--- linus-2.6.orig/arch/powerpc/platforms/cell/cbe_regs.c
+++ linus-2.6/arch/powerpc/platforms/cell/cbe_regs.c
@@ -43,6 +43,19 @@ static struct cbe_thread_map
 static struct cbe_regs_map *cbe_find_map(struct device_node *np)
 {
 	int i;
+	struct device_node *tmp_np;
+
+	if (strcasecmp(np->type, "spe") == 0) {
+		if (np->data == NULL) {
+			/* walk up path until cpu node was found */
+			tmp_np = np->parent;
+			while (tmp_np != NULL && strcasecmp(tmp_np->type, "cpu") != 0)
+				tmp_np = tmp_np->parent;
+
+			np->data = cbe_find_map(tmp_np);
+		}
+		return np->data;
+	}
 
 	for (i = 0; i < cbe_regs_map_count; i++)
 		if (cbe_regs_maps[i].cpu_node == np)